[Childcare] Ocean-themed craft ideas! From wall displays to 3D projects
In summer, ocean-themed crafts are a common activity in childcare.
Ocean motifs feel refreshing and are perfect for the season.
Sea creatures like fish and crabs are fun for children to make.
However, finding age-appropriate ideas and new forms of expression can be challenging.
So, we’ve gathered a collection of ocean-themed craft ideas here.
You’ll find a variety of projects, from flat drawings to three-dimensional creations.
Please use these as a reference and enjoy a fun summer with the children! Note: Since the children’s creations are treated as works, the term “seisaku” (制作) is used in the text.
- [Nursery/Daycare] Ocean wall display, summer sea, sea creatures
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- Jellyfish crafts that are great for preschool activities! You can even play pretend aquarium with them.
- Recommended in July! Summer craft play ideas
- [Childcare] Summer wall display ideas: fun summer craft activities
- [For 3-year-olds] A roundup of craft ideas to enjoy in summer! Introducing various motifs and techniques
- [Childcare] A roundup of summer craft ideas to enjoy with 2-year-olds
- September: Autumn crafts! Ideas you can use in childcare
- [Childcare] August Crafts: Cute Ideas to Make in Summer
- [Childcare] Craft ideas perfect for June
- [Childcare] A roundup of craft ideas for 1-year-olds, perfect for summer
[Childcare] Ocean-themed craft ideas! From wall displays to 3D projects (41–50)
Sea creatures made with paper chain links

Let’s use paper chains like the ones you see at birthday parties to make sea creatures! You can create animals using only paper chains, or use them as parts of your creations.
When used as parts, they can become the tentacles of octopuses, squids, or jellyfish, seaweed, or even fish scales.
By getting creative with how you link the loops, you can make starfish or shells using just paper chains, too.
Depending on the age group, it’s also a great idea to have the children help make the chains.
[Childcare] Ocean-themed craft ideas! From wall displays to 3D projects (51–60)
Let’s make sea creatures out of scrap materials

Crafts made from recycled materials are a great way for kids to casually engage with eco-friendly practices and the SDGs! Try combining everyday recycled items—like empty tissue or snack boxes, gashapon capsules, cardboard, and wrapping paper—to create sea creatures.
An empty box can transform into a big fish, and wrapping paper can become beautiful fish scales—there are countless ways to use them.
Of course, you can also mix in construction paper or origami.
If everyone sticks their creations onto a large sheet of poster paper imagined as the sea, you can bring an ocean right into your room!
A Sea of Bleeding Colors
Let’s try expressing the ocean using the bleeding painting technique.
Prepare a sheet of rice paper, draw freely, and simply mist it with a spray to make the colors bleed—that’s it! It’s a very simple project, but spraying together with the children will really liven things up.
It’s a creative idea where the process itself is fun.
In addition to blue and light blue, have green and purple pens ready to broaden the range of expression.
Display the artwork in the classroom or at the entrance so many people can enjoy it.
Feel the sea together with the children!
A sea picture made with stamps

Combine different stamps to create the ocean! Prepare a sheet of drawing paper with a basic ocean scene or use blue construction paper, then start stamping on top.
For stamps, you can use dabbers, eraser stamps, any store-bought stamps, or even handprints, footprints, and fingers.
By getting creative with how you stamp and combine them, you can depict sea creatures, seaweed, and more.
It’s fine to just press stamps freely, so even younger children can enjoy it easily.
Display the children’s originality-filled artworks in your room and immerse yourselves in an ocean world.
In conclusion
We introduced craft ideas related to the ocean.
By using different materials and techniques, you can create a variety of expressions even with the same ocean theme.
Choose ideas that match the children’s interests and what they want to try.
It would be great if they can continue enjoying their creations afterward—by displaying them or taking them home.



